Vol. 12, Issue 6 (2023)

Author(s):
Manasa TS, Basavarajappa M, Raghavendra K Mesta, Ramangouda SH and YC Vishwanath

Abstract:
Bacterial leaf spot is one of the major threats in betel vine production as it can cause economic loss. Concern on the environment and human health has led an attempt to replace existing methods of chemical control and avoid extensive use of bactericides by using endophytic bacteria. The present study was conducted to isolate and characterize of endophytic bacteria Bacillus aerius isolated from betel vine that has potential as antagonistic bacteria against Xanthomonas axonopodis pv. betlicola, the causal agent of bacterial leaf spot of betel vine. Bacillus aerius were successfully isolated from leaves of betel vine and showed strong antagonistic activity indicated against X. a. pv. betlicola on nutrient agar plate. Molecular identification successfully identified the antagonistic endophytic bacteria as Bacillus aerius. The findings in this study revealed the biocontrol abilities of isolated endophytes as an excellent option to be used by agriculture sectors to have a sustainable environment.